Writing instrument with variable contour grip



FIG. 1 is a front, right perspective view of a writing instrument with variable contour grip showing my new design therefor;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a bottom end view thereof; and,

FIG. 4 is a top end view thereof. 

The ornamental design for a writing instrument with variable contour grip, as shown and described. 